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Commission pour la conservation de la faune et la flore marines de l'Antarctique

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  1. Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia

    50% F 0.1 with F increasing three or five years after a good recruitment; pulse fishing at an ... interval of three years with no fishing in between; and changes in net selectivity resulting in a shift in ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Auteur(s): Köster, F.W. and K.-H. Kock

  2. Feeding patterns of nine species of Antarctic fish and assessment of their daily food consumption

    Trematomus eulepidotus- planktivorous species with euphausiids, mainly Euphausia superba, being the staple ... forms of polychaetes, with Euphausia superba also comprising a considerable portion of its diet; (iii ... species with euphausiids, mainly Euphausia superba, being the staple food; (ii) Trematomus centronotus ... - a benthophage feeding mainly on amphipods, mobile and sedentary forms of polychaetes, with ... (Grawford, McLeave as cited in Targett, 1981; Montgomery et al., 1989). In accordance with equation (3) the ... - planktophagic species with euphausiids, mainly Euphausia superba, being the staple food. T. eulepidotus also ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 321–333 : Auteur(s): Pakhomov, Y.A. and V.B. Tseitlin

  3. Supplementary data on exploited stocks in Division 58.5.1 (Kerguelen)

    each of the exploited stocks, some new data which have been acquired since these works. 2. METHODS ... operating in the fishing areas. They are concerned both with statistical (catch and fishing effort) data ... . Regular experimental fishing with trammel nets in this area would thus allow the measurement of ... will later have repercussions on the adult stock, with some inertia due to growth, taking into account ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 147–161 : Auteur(s): Duhamel, G.

  4. Catch per unit effort (CPUE) data from the early years of commercail krill fishing operations in the Atlantic sector of the Antarctic

    one (catch in tonnes/minute) introduced by Marin et al. (1991) to analyse the Chilean krill fishery ... in 1980/81, with shelf CPUE values about one order of magnitude higher than in oceanic regions of ... 3). These are the years with the highest average catch rate. The 1981/82 CPUE values also differed ... year class 1974/75, although the net was identical to the one in which, in accordance with mesh ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Auteur(s): Siegel, V., V. Sushin and U. Damm

  5. Champsocephalus gunnari stock status in the South Georgia area

    and TAC for C. gunnari. Stock estimates were obtained using VPA with the following variations: mean F ... prediction the stock size value was obtained by VPA with variations using F regression methods. The ... were obtained using VPA with the following variations: mean F, Gamma methods, Pope and Shepherd method ... obtained by VPA with variations using F regression methods. The recruitment was taken at the lowest ... if FO.1 = 0.439. * All stock status and TAC predictions were made with the assumption that ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Auteur(s): Borodin, R. and P. Kochkin

  6. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

    criteria for the new calculations have little in common with the earlier calculations. The ... South Georgia and TRAWL SURVEY BIOMASS ESTIMATES Kerguelen. In this paper, a new assessment is ... developed using results from the three previous surveys and results from a new survey carried out in ... the sample means with bootstrap variance and confidence intervals (Efron and Tibshirani, 1993). The ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Auteur(s): de la Mare, W.K., R. Williams and A.J. Constable

  7. Estimating standing stock of krill using maximum entropy

    stock of krill in the area and compare it with the estimate using the Jolly and Hampton (1990) method ... method but with approximately the same stan- dard deviation. The authors state that the MaxEnt method ... totally incorrect to state that the MaxEnt estimate is ‘plausible’ in compari- son with the Jolly and ... Hampton results presented by Demer and Conti (2005). Something is wrong with the estimated standing ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 193 : Auteur(s): Everson, I

  8. Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)

    was found that the distribution of krill swarms corresponds largely with areas where currents turn ... differences in krill biomass are undoubtedly associated with the volume of krill brought here by waters of the ... found that the distribution of krill swarms corresponds largely with areas where currents turn into ... circulation. Annual differences in krill biomass are undoubtedly associated with the volume of krill brought ... in relation to environmental conditions. Together with biomass assessments this has paved the way ... ) before continuing to flow with the currents in an easterly direction (Everson, 1976; Maslennikov and ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Auteur(s): Latogursky, V.I., R.R. Makarov and L.G. Maklygin

  9. A simulation study of krill fishing by an individual Japanese trawler

    is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ... that scientific surveys be planned to operate in small areas concurrently with fishing vessels. File ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Auteur(s): Butterworth, D.S.

  10. Size compositions of males and females in the course of the life cycle of Euphausia superba

    (Figures 5 and 6). In addition, soon after the spawning season and with the passage of time, new smaller ... season. Stages of the reproductive cycle are given with reference to developmental stages of females ... non-mature or at the beginning of maturation (lIB, ma-me); B ready for spawning with developed ... oocytes (mD); C recently spawned (ovaries with residual oocytes), juvenilization of ovaries has not yet ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 3–16 : Auteur(s): Makarov, R.R.

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